182 [July, 



black mark on the second and third segments, forming three sub-triangular confluent 

 spots ; discal and marginal setae both present ; wings and scales rather nebulous, 

 the former with apical cross vein straight, and bent at the base in an obtuse angle ; 

 legs black, hind tibiae thickly, but not quite evenly, ciliated on their outer sides. 

 Rare ; in Mr. Dale's collection ; captured at Glanvilles Wootton. Only the male 

 is known. 



D. MUSCARIA, Fin. 

 Frontal stripe black, equal in width to the sides of the frontalia, which are 

 white, with dark reflections ; antennae with third joint only about three times the 

 length of the second ; arista thickened nearly to the middle ; palpi yellow or testa- 

 ceous; facial setae not extending higher than the middle of the face; thorax 

 cinereous, with four black stripes, which are often partly confluent ; post-sutural 

 outer dorso-central bristles three in number ; wings with apical cross vein nearly 

 straight, and bent at the base in a curve ; legs black. Rare ; in Mr. Dale's col- 

 lection, found at Glanvilles Wootton, and I have a specimen in my own, which was 

 given me by the Rev. E. N. Bloomfield, captured at Guestling, Hastings. 



36.— PHOROCERA, Dsv. 

 Gen. cli. — Eyes hairy ; facial angle rather oblique ; frontalia wide 

 in both sexes, but rather narrower in the male than female ; facialia 

 ciliated to above the middle of the face ; antennae long, with third 

 joint from four to eight times the length of the second ; arista 

 generally long ; abdomen mostly with both marginal and discal setae ; 

 wings with the first posterior cell ending at some distance before the 

 point of the wing, and outer cross vein placed nearer to the bend of 

 the fourth vein than to the little cross vein. 



1 (8) Palpi yellow or testaceous. 



2 (3) Fourth vein bent in a curve 1. concinnata, "^igr. 



3 (2) Fourth vein bent at an angle. 



4 (5) Palpi very small 2. filipalpis, Rnd. 



5 (4) Palpi of ordinary form. 



6 (7) Scutellum black 3. Cfssi/Vow*, Mcq. 



7 (6) Scutellum rufous 4. assimilis, Fin. 



8 (1) Palpi black. 



9 (10) Fourth vein bent in a curve 5. unicolor, Fin. 



10 (9) Fourth vein bent at an angle 6. cilipeda, 'Rnd. 



P. CONCINNATA, MgU. 



MachcercBa serriventris, End. 



Frontalia with central stripe piceous, and rather narrower than the sides, which 

 arc yellowish-white, with dark reflections ; cheeks nude, and with face luteous ; 

 facial seta) extending more than half way up ; palpi filiform, yellow ; antennae grey, 

 with third joint from four to six times longer than second ; arista very long and 

 capillary, thickened for about two-fifths of its Icngtli ; thorax covered with grey 

 pubescence, and marked with four slrii)t'ti, tlie outer ones widei- tlian the inner ones ; 



